Enum drop_tracker::State

pub enum State {
    Alive,
    Dropped,
}

A type that represents the state of a DropItem: either alive or dropped.

See the module documentation for details.

Variants

Alive

The item is alive.

Dropped

The item has been dropped, and its destructor has been called.

Implementations

impl State

pub const fn is_alive(&self) -> bool

Returns true if the state is Alive.

Examples

use drop_tracker::State;

assert!(State::Alive.is_alive());
assert!(!State::Dropped.is_alive());

pub const fn is_dropped(&self) -> bool

Returns true if the state is Dropped.

Examples

use drop_tracker::State;

assert!(State::Dropped.is_dropped());
assert!(!State::Alive.is_dropped());

pub const fn alive(&self) -> Result<(), DroppedError>

Returns Ok if the state is Alive, Err otherwise.

Examples

use drop_tracker::DroppedError;
use drop_tracker::State;

assert_eq!(State::Alive.alive(), Ok(()));
assert_eq!(State::Dropped.alive(), Err(DroppedError));

pub const fn dropped(&self) -> Result<(), AliveError>

Returns Ok if the state is Dropped, Err otherwise.

Examples

use drop_tracker::AliveError;
use drop_tracker::State;

assert_eq!(State::Dropped.dropped(), Ok(()));
assert_eq!(State::Alive.dropped(), Err(AliveError));

Trait Implementations

impl Clone for State

fn clone(&self) -> State

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for State

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for State

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl PartialEq<State> for State

fn eq(&self, other: &State) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl Copy for State

impl Eq for State

impl StructuralEq for State

impl StructuralPartialEq for State